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Worksheets

Revision Biology

Total questions: 182

Worksheet time: 2hrs 51mins

Name
Class
Date
1.

The longest cell in human body is

a)

Red blood cell

b)

Nerve cell

c)

Muscle cell

d)

Fat cell

2.

A prokaryotic cell has

a)

Nucleus, cell membrane, cytoplasm

b)

Nucleus, mitochondria, cell membrane

c)

Nucleoid, cell membrane, ribosomes

d)

Nucleoid, cell wall, mitochondria

3.

When we sprinkle salt on salad, water comes out because of

a)

endosmosis

b)

Exosmosis

c)

Diffusion

d)

None of the above

4.

Cell wall of plant cells chiefly composed of

a)

Phospholipids

b)

Protein

c)

Cellulose

d)

Hemicellulose

5.

Amoeba acquires its food through a process termed as

a)

Endocytosis

b)

Exocytosis

c)

Plasmolysis

d)

Exocytosis and endocytosis both

6.

What is the example of unicellular organism?

a)

Amoeba

b)

Bacteria

c)

Paramocium

d)

All of the above

7.

Identity the image :

a)

Telescope

b)

Compound microscope

c)

Microwave

d)

Toaster

8.

Which statement is true about cell theory?

a)

Cell theory states that all cells are non­living.

b)

Cell theory states that cells can come from non­living

things.

c)

Cell theory states that all cells arise from other cells.

d)

Cell theory says animal cells are the only type of

living cells.

9.
stiff, protective outer layer of plant cells
a)
cell membrane
b)
nuclear membrane
c)
cell wall
d)
cytoplasm
10.
Cell organelles are embedded in
a)
Nucleolus
b)
Cytoplasm
c)
Protoplasm
d)
Mitochondria
11.
 In the given scenario what will happen?  An egg with a dissolved shell is placed in pure water for 48 hours.
a)
Water will move in and out of the cell equally, and the cell with neither shrink nor swell.
b)
The egg will gain water and swell.
c)
The egg will lose water and shrink.
12.
If you looked at red blood cells under a microscope and saw the blood cells exploded, what would you say happened?
a)
The cells were placed in a hypotonic solution.
b)
the solution was isotonic.
c)
The solution was hypertonic.
13.
Prokaryotes and eukaryotes both have
a)
cell membrane and DNA
b)
nucleus
c)
cell wall
14.

I decide what goes in and out of the cell. I am fluid like and found in BOTH plant and animal cells. I am a...

a)

Cell Wall

b)

Cell Membrane

c)

Cytoplasm

d)

Golgi Apparatus

15.
Ideally, your cells should be in a(n) _______ solution
a)
isotonic
b)
hypertonic
c)
hypotonic
d)
isometric
16.

The cell membrane is _______________ permeable.

a)

selectively

b)

somewhat

c)

physically

d)

ionically

17.

The cell membrane is mostly made of what?

a)

Membrane-spanning Proteins

b)

Surface Proteins

c)

Phospholipids

d)

Carbohydrates

18.

Define plasma membrane

a)

lipid that helps minimize effects of temperature

b)

only on the outer surface of the plasma membrane and are attached to proteins or lipids; form distinctive cellular markers

c)

flexible boundary of a cell that separates a cell from its surroundings

d)

may extend partway into the plasma membrane, cross the membrane entirely, or be loosely attached to its inside or outside face

19.

Which type of biological macromolecule is the main component of the plasma membrane?

a)

carbohydrate

b)

lipid

c)

protein

d)

nucleic acid

20.
What is another term for "selectively permeable"?
a)
porous
b)
completely permeable
c)
permanent
d)
semipermeable
21.
Most of the cell membrane is made of...
a)
Lipids
b)
Carbohydrates
c)
Proteins
d)
Nucleic acids
22.
What does "bilayer" mean?
a)
one layer
b)
two layers
c)
laminated
d)
bilateral
23.

I provide plant cells their rigid shape. I am the...

a)

Basketball that Nic Quarne left in Mr. Woller's room last week

b)

Cytoskeleton

c)

Cell Membrane

d)

Cell Wall

24.
a rigid supporting layer that surrounds the cells of plants and some other organisms
a)
cell membrane
b)
cell wall
c)
 nucleus
d)
cytoplasm
25.

Which of the following are the main constituents of cell wall?

a)

Pectin

b)

Cellulose

c)

Starch

d)

Protein

26.

What is the meaning of cell

a)

Honeycomb

b)

a small room

c)

Compound microscope

d)

Selective permeable membrane

e)

A small room

27.

Cell wall of plant cells chiefly composed of

a)

Phospholipids

b)

Protein

c)

Cellulose

d)

Hemicellulose

28.

Well defined nucleus is absent in

a)

Animal cells

b)

Plant cells

c)

Eukaryotic cells

d)

Prokaryotic cells

29.

Cell arises from preexisting cell was stated by

a)

Robert hooke

b)

Hackle

c)

Schleiden

d)

Virchow

30.

Amoeba acquires its food through a process termed as

a)

Endocytosis

b)

Exocytosis

c)

Plasmolysis

d)

Exocytosis and endocytosis both

31.

First living cells were observed by

a)

Robert hooke

b)

Robert Brown

c)

A. V. Leeuwenhoek

d)

R. Virchow

32.

Main difference between animal cell and plant cell is

a)

nutrition

b)

Movement

c)

Respiration

d)

Growth

33.

Organelle without a cell membrane is

a)

Ribosomes

b)

Nucleus

c)

Mitochondria

d)

Chloroplast

34.

Well defined nucleus is absent in

a)

Animal cells

b)

Plant cells

c)

Eukaryotic cells

d)

Prokaryotic cells

35.

Rough endoplasmic reticulum contains

a)

DNA

b)

RNA

c)

cellulose

d)

Ribosome

36.
break down (digest) worn out cell parts, mostly in animal cells
a)
cytoplasm
b)
lysosomes
c)
mitochondria
d)
vacuoles
37.
a)
where ribosomes are made
b)
receives proteins from ER and distributes them
c)
assembles amino acids into proteins
38.

Contains enzymes for breaking down food and other material

a)

Golgi Body/Apparatus

b)

Vacuole

c)

Lysosomes

d)

Ribosomes

39.

Provides extra protection and support to plants, fungi, and prokaryotic cells. It is NOT found in animal cells.

a)

Cell Membrane

b)

Nuclear Envelope

c)

Cell Wall

d)

Chloroplast

40.

What organelles are only found in plant cells?

a)

cell membrane and chloroplast

b)

cell membrane and mitochondria

c)

cell wall and chloroplast

d)

centrioles and lysosomes

41.
contains enzymes (proteins that speed up digestion and chemical reactions0
a)
lysosome
b)
ribosome
c)
nucleus
d)
golgi body
42.
ONLY found in plant cells
a)
nucleus
b)
cell wall
c)
cell membrane
d)
lysosome
43.
stiff, protective outer layer of plant cells
a)
cell membrane
b)
nuclear membrane
c)
cell wall
d)
cytoplasm
44.
break down (digest) worn out cell parts, mostly in animal cells
a)
cytoplasm
b)
lysosomes
c)
mitochondria
d)
vacuoles
45.
You might think of me as the trash collector, but recycler is maybe more accurate. What am I?
a)
mitochondria
b)
lysosome
c)
vacuole
d)
ribosome
46.
Which organelles are filled with enzymes that aid in intra-cellular digestion, breaking down wastes and old organelles?
a)
mitochondria
b)
Golgi body
c)
lysosomes
d)
ribosomes
47.

The most abundant material in plant cell wall is

a)

cellulose

b)

lipids

c)

proteins

d)

wax

48.

Lysosomes are formed by

a)

RER

b)

SER

c)

Plasma membrane

d)

Golgi apparatus

49.

Amoeba acquires its food through a process, called

a)

exocytosis

b)

endocytosis

c)

plasmolysis

d)

exocytosis and endocytosis both

50.

The undefined nuclear region of prokaryotes is also known as

a)

nucleus

b)

nucleolus

c)

nucleic acid

d)

nucleoid

51.

Which of the following act as a garbage disposal system of the cell

a)

Golgi apparatus

b)

Vacuole

c)

lysosome

d)

peroxisomes

52.

Chromosomes are made up of

a)

DNA

b)

protein

c)

DNA and protein

d)

RNA

53.

The infoldings of mitochondria are known as

a)

cristae

b)

matrix

c)

cisternae

d)

grana

54.

Colorless plastids are known as

a)

leucoplasts

b)

chromoplasts

c)

chloroplasts

d)

none of the above

55.

Cell theory was given by

a)

Schleiden and Schwann

b)

Virchow

c)

Hooke

d)

Haeckel

56.

Kitchen of the cell is

a)

mitochondria

b)

chloroplast

c)

endoplasmic reticulum

d)

Golgi apparatus

57.

Amoeba acquires its food through a process termed as

a)

exocytosis

b)

endocytosis

c)

plasmolysis

d)

exocytosis and endocytosis

58.

A cell placed in hypotonic solution will

a)

shrink

b)

show plasmolysis

c)

swell up

d)

no change in shape and size

59.

Root hairs of plants absorb water from soil through

a)

diffusion

b)

imbibition

c)

osmosis

d)

all the above

60.

Intercellular connections in plant cells are called

a)

middle lamella

b)

microfibrils

c)

matrix

d)

plasmodesmata

61.

First living cells were observed by

a)

A.V. Leeuwenhoek

b)

Robert Hooke

c)

R. Virchow

d)

Robert Brown

62.

Cell arise from pre-existing cell was stated by

a)

Haeckel

b)

Virchow

c)

Hooke

d)

Schleiden

63.

The site of detoxification in liver cells is

a)

lysosome

b)

RER

c)

ribosome

d)

SER

64.

Control center of the cell

a)

mitochondria

b)

nucleus

c)

SER

d)

chromosomes

65.

The process in which parent cell divides to form two identical daughter cells is

a)

meiosis

b)

mitosis

c)

binary fission

d)

budding

66.

Nucleolus is the site of

a)

mRNA synthesis

b)

Ribosome synthesis

c)

Protein synthesis

d)

ATP synthesis

67.

What is the vascular tissue that carries water throughout a plant?

a)

phloem

b)

seedling

c)

xylem

68.

_____________________ is a vascular tissue that carries sugars and other foods throughout a plant.

a)

stems

b)

phloem

c)

roots

d)

xylem

69.

Tissues with active cell division

a)

Permanent

b)

Meristematic

70.

Meristems at the tip of roots and shoots

a)

Lateral

b)

Apical

c)

Ploem

71.

Parenchyma walls are made up of

a)

Pectin

b)

Hemicellulose

c)

Cellulose

72.

Tissues commonly found in the fruit wall of nuts

a)

Parenchyma

b)

Sclerenchyma

c)

Collenchyma

73.
what is the function of xylem tissue?
a)
transports water and minerals salt 
b)
control the opening and closing of stoma
c)
carry out photosynthesis
d)
provide support for young plant
74.

Both a plant and animal cells have a cell wall

a)

True

b)

False

75.

Do meristematic tissues have vacuoles present in them?

a)

Yes

b)

No

76.

Intercalary meristems are found in which part of the plants?

a)

Growing tips

b)

Lateral side

c)

Nodes

77.

This type of tissue contains cells of same types

a)

Simple permanent tissues

b)

Complex permanent tissues

78.

There is more Intercellular space found in this tissue

a)

Collenchyma

b)

Sclerenchyma

c)

Parenchyma

d)

Epidermis

79.

I am a kind of parenchymatous cell, and I perform photosynthesis. Who am I?

a)

Collenchyma

b)

Aerenchyma

c)

Chlorenchyma

d)

Sclerenchyma

80.

It helps water Hyacinth to float on water. What type of parenchyma tissue is it?

a)

Chlorenchyma

b)

collenchyma

c)

Aerenchyma

d)

schlerenchyma

81.

The size of the stem increases in width due to ___________.

a)

primary meristem

b)

apical meristem

c)

intercalary meristem

d)

lateral meristem

82.

It is difficult to pull out the husk of coconut because

a)

sclerenchyma cells are closely packed

b)

collenchyma cells have thickened corners

c)

xylem gives mechanical strength

d)

epidermis has a thick cuticle

83.

This vessel makes up part of the vascular tissue of a plant. It carries water and dissolved ions from the roots to the stems and leaves.

a)

Meristem

b)

Xylem

c)

Cambium

d)

Phloem

84.

This vessel carries dissolved sugars from the leaves to all other parts of the plant.

a)

Meristem

b)

Xylem

c)

Cambium

d)

Phloem

85.

Epidermal cells secrete a waxy substance called _____, which coats, waterproofs, and protects the above-ground parts of plants.

a)

Dermis

b)

Stomata

c)

Cuticle

d)

Phloem

86.

Within the epidermis, thousands of pairs of bean-shaped cells called ________, swell and shrink by osmosis to open and close tiny pores which control the exchange of gases and the release of water vapor.

a)

stomata

b)

guard cells

c)

Schwann cells

d)

prokaryotic cells

87.

Within the epidermis, thousands of pairs of bean-shaped cells swell and shrink to open and close _______, which are tiny pores that control the exchange of oxygen and carbon dioxide gases and the release of water vapor.

a)

stomata

b)

stamen

c)

stigma

d)

style

88.

This type of tissue is capable of cell division (mitosis).

a)

Ground tissue

b)

Vascular tissue

c)

Dermal tissue

d)

Meristematic tissue

89.

Find out incorrect sentence.

a)

Parenchymatous tissues have intercellular spaces

b)

Collenchymatous tissues are irregularly thickened at corners

c)

Apical and intercalary meristems are permanent tissues

d)

Meristematic tissues, in its early stage, lack vacuoles

90.

Which of the following tissues has dead cells?

a)

Parenchyma

b)

Sclerenchyma

c)

collenchyma

d)

epithelial tissue

91.

Girth of stem increases due to

a)

apical meristem

b)

lateral meristem

c)

intercalary meristem

d)

vertical meristem

92.

In desert plants, rate of water loss gets reduced due to the presence of

a)

cuticle

b)

stomata

c)

lignin

d)

suberin

93.

How many simple permanent tissues are there?

a)

1

b)

2

c)

3

d)

None of above

94.

Choose the correct statement for parenchyma tissues.

a)

It serves as food storage cell.

b)

This tissue provides support to animals.

c)

Parenchyma cells which contain chlorophyll are called chlorenchyma.

d)

None of above.

95.

chollenchyma tissues have ............. intermolecular space.

a)

No

b)

Very little

c)

High

d)

Very high

96.

Chollenchyma tissues provide ......... ........... to plants

a)

Support

b)

Elasticity

c)

Both A and B

d)

None of above

97.

The cell of sclerenchymatous tissues are

a)

Alive

b)

Dead

c)

Neither alive nor dead

d)

None of above

98.

Cell wall of sclerenchymatous tissues are thickened due to the deposition of

a)

Cellulose

b)

Chitin

c)

Lignin

d)

None of these

99.

Parenchyma cells are

a)

Relatively unspecified and thin-walled

b)

Thick walled and specialised

c)

Lignified

d)

None of above

100.

Flexibility in plants is due to

a)

Chollenchyma

b)

Sclerenchyma

c)

Parenchyma

d)

Chlorenchyma

101.

A long tree has several branches. The tissue that helps in the sideways conduction of water in branches is

a)

Chollenchyma

b)

Xylem parenchyma

c)

Parenchyma

d)

Xylem vessels

102.

Phloem fibres are living sclerenchyma cells

a)

False

b)

True

103.
Plants are multicellular, which means
a)
they are made of many cells.
b)
they are made of one cell.
104.

What are the levels of organization in plants?

a)

Plants have cells, but not tissues.

b)

Plants are made up of cells, tissues, organs, and organ systems

c)

Plants contain cells and tissues, but not organs.

105.

What is the vascular tissue that carries water throughout a plant?

a)

phloem

b)

seedling

c)

xylem

106.

The body of a plant is made up of organs called roots, ________, and leaves.

a)

vacuole

b)

stems

c)

cones

107.
Plants get food by
a)
absorbing it.
b)
making it.
108.

_____________________ is a vascular tissue that carries sugars and other foods throughout a plant.

a)

stems

b)

phloem

c)

roots

d)

xylem

109.

Plants have two organ systems, the _________________ system and the root system.

a)

vascular

b)

seedless

c)

shoot

d)

non-vascular

110.

Tissues with active cell division

a)

Permanent

b)

Meristematic

111.

Meristems at the tip of roots and shoots

a)

Lateral

b)

Apical

c)

Ploem

112.

Parenchyma walls are made up of

a)

Pectin

b)

Hemicellulose

c)

Cellulose

113.

Tissues commonly found in the fruit wall of nuts

a)

Parenchyma

b)

Sclerenchyma

c)

Collenchyma

114.
what is the function of xylem tissue?
a)
transports water and minerals salt 
b)
control the opening and closing of stoma
c)
carry out photosynthesis
d)
provide support for young plant
115.

Both a plant and animal cells have a cell wall

a)

True

b)

False

116.

Tissues are

a)

Group of cells that perform similar functions

b)

Groups of organelles that perform similar functions

c)

Groups of organs.

d)

Important for the survival of living organisms

117.

Do meristematic tissues have vacuoles present in them?

a)

Yes

b)

No

118.

Intercalary meristems are found in which part of the plants?

a)

Growing tips

b)

Lateral side

c)

Nodes

119.

This type of tissue contains cells of same types

a)

Simple permanent tissues

b)

Complex permanent tissues

120.

There is more Intercellular space found in this tissue

a)

Collenchyma

b)

Sclerenchyma

c)

Parenchyma

d)

Epidermis

121.

I am a kind of parenchymatous cell, and I perform photosynthesis. Who am I?

a)

Collenchyma

b)

Aerenchyma

c)

Chlorenchyma

d)

Sclerenchyma

122.

It helps water Hyacinth to float on water. What type of parenchyma tissue is it?

a)

Chlorenchyma

b)

collenchyma

c)

Aerenchyma

d)

schlerenchyma

123.

This type of tissue lines the internal organs and covers the outside of the body as skin

a)

connective

b)

epithelial

c)

muscular

d)

nervous

124.

This type of tissue includes ligaments, tendons, and cartilage

a)

epithelial

b)

muscular

c)

connective

d)

nervous

125.

Muscles present in the heart are...

a)

Striated muscles

b)

Cardiac muscles

c)

Non striated muscles

d)

All the above

126.

Identify the tissue present in this figure..

a)

Nerve tissue

b)

Adipose tissue

c)

Cuboidal epithelial tissue

d)

Areolar tissue

127.

The connective tissue that connects bones at the joints is...

a)

Cartilage

b)

Bone

c)

Ligament

d)

Both cartilage and bone

128.

The connective tissue that keeps organs in place is....

a)

Squamous epithelium

b)

Skin

c)

Areolar tissue

d)

Bhuvan

129.

Fat is stored in this tissue...

a)

Adipose tissue

b)

Blood

c)

Cartilage

d)

None of these

130.
What is blood classified as?
a)
tissue
b)
organ
c)
organ system
131.
Which is NOT a shape of epithelial cells?
a)
cuboidal
b)
columnar
c)
squamous
d)
circular
132.

Name the tissue

a)

Pseudostratified

b)

Simple columnar

c)

Transitional

d)

Stratified Squamous

133.

A group of similar cells to perform a specific function form

a)

organ

b)

organ system

c)

organism

d)

tissue

134.
Which connective tissue contains a gel-like matrix and is found in the nose, ear, and at the end of bones.
a)
Bone
b)
Cartilage
c)
Blood
d)
Adipose
135.
This tissue carries nutrients, waste, respiratory gases, and many other substances throughout the body.
a)
Bone
b)
Cartilage
c)
Blood
d)
Adipose
136.
Connective tissue is
a)
The tissue that protects, supports, and binds together other body tissue
b)
Tissue that is the lining, covering, and glandular tissue of the body
c)
Tissue that contracts and shortens to produce movement
137.
Identify the part of the neuron
a)
axon
b)
axon terminal
c)
dendrite
d)
Node of Ranvier
138.

What is the supplying of water to land through artificial means?

a)

Sprinkling

b)

Evapotranspiration

c)

Irrigation

d)

natural rain

139.

Growing two or more crops but in the definite row pattern is known as

a)

Mixed cropping

b)

Crop rotation

c)

Intercropping

d)

All of these

140.

Growing of different crops on a piece of land in a pre-planned succession

a)

Crop rotation

b)

Inter cropping

c)

Mixed cropping

d)

All of these

141.

The unwanted plants which grow with main crops are called

a)

Weeds

b)

Crops

c)

Grasses

d)

Herbs

142.

Preventive and control measures adopted for the storage of grains include

a)

Strict cleaning

b)

Proper drying of the produce

c)

Fumigation

d)

All of the above

143.

Which elements are considered non-mineral nutrients?

a)

Carbon, Hydrogen & Oxygen

b)

Carbon, Hydrogen, Oxygen and Nitrogen

c)

Carbon, Potassium, Hydrogen & Nitrogen

144.

Plants have roots that take in water and nutrients from _____.

a)

stem

b)

soil

c)

sunlight

d)

air

145.

Select all of the following that are macronutrients.

a)

calcium

b)

manganese

c)

copper

d)

sulfur

e)

magnesium

146.

What does K in "NPK" stand for in fertiliser package labels?

a)

Kajang

b)

Potassium

c)

Phosphorus

d)

Kuala Lumpur

147.

Micronutrients required by plants in

a)

large quantities

b)

small quantities

148.

pulses are rich in

a)

proteins

b)

Carbohydrates

c)

oils

d)

vitamins

149.

Kharif crop is

a)

summer season crop

b)

Winter season crop

c)

Rainy season crop

150.

Rabi crop is

a)

Summer crop

b)

Winter crop

c)

Autumn crop

151.

Increase in milk production is

a)

Green revolution

b)

White revolution

c)

yellow revolution

152.

Which one is an oil yielding plant among the following ?

a)

(a) Lentil

b)

(b) Sunflower

c)

(c) Cauliflower

d)

(d) Hibiscus

153.

Which one is not a source of carbohydrate?

a)

(a) Rice

b)

(b) Millets

c)

(c) Sorghum

d)

(d) Gram

154.

To solve the food problem of the country, which among the following is necessary?

a)

(a) Increased production and storage of food grains

b)

(b) Easy access of people to the food grain

c)

(c) People should have money to purchase the grains

d)

(d) All of the above

155.

Who is the father of Green Revolution in the World?

a)

(a) Norman Borlaug

b)

(b) M.S Swaminathan

c)

(c) Raj Krishna

d)

(d) R.K.V Rao

156.

Crossing between genetically dissimilar plants to obtain crops having useful characteristics

a)

Genetically modified organisms

b)

Hybridization

c)

Agronomics

d)

None of them

157.

The desirable agronomic characters improved using crop variety programmes are called

a)

Tallness and dwarfness

b)

draught

c)

salinity

d)

cold

158.

pulses are rich in

a)

proteins

b)

Carbohydrates

c)

oils

d)

vitamins

159.

Kharif crop is

a)

summer season crop

b)

Winter season crop

c)

Rainy season crop

160.

Rabi crop is

a)

Summer crop

b)

Winter crop

c)

Autumn crop

161.

Increase in milk production is

a)

Green revolution

b)

White revolution

c)

yellow revolution

162.

Which one is an oil yielding plant among the following ?

a)

(a) Lentil

b)

(b) Sunflower

c)

(c) Cauliflower

d)

(d) Hibiscus

163.

Which one is not a source of carbohydrate?

a)

(a) Rice

b)

(b) Millets

c)

(c) Sorghum

d)

(d) Gram

164.

To solve the food problem of the country, which among the following is necessary?

a)

(a) Increased production and storage of food grains

b)

(b) Easy access of people to the food grain

c)

(c) People should have money to purchase the grains

d)

(d) All of the above

165.

Who is the father of Green Revolution in the World?

a)

(a) Norman Borlaug

b)

(b) M.S Swaminathan

c)

(c) Raj Krishna

d)

(d) R.K.V Rao

166.

Crossing between genetically dissimilar plants to obtain crops having useful characteristics

a)

Genetically modified organisms

b)

Hybridization

c)

Agronomics

d)

None of them

167.

The desirable agronomic characters improved using crop variety programmes are called

a)

Tallness and dwarfness

b)

draught

c)

salinity

d)

cold

168.

What has green revolution led to?

a)

Decreased food grain production

b)

Increased food grain production

c)

Decreased milk production

d)

Increased milk production

169.

What has white revolution led to?

a)

Decreased production and management of milk

b)

Increased production and management of milk

c)

Decreased food grain production

d)

Increased food grain production

170.

Name the two factors on which food security depends.

a)

Availability of water and access to it

b)

Availability of food and access to it

c)

Availability of sunlight and access to it

d)

Availability of air and access to it

171.

What should we do for a sustained livelihood?

a)

Adopt practices like monocropping

b)

Adopt practices like mixed farming

c)

Adopt practices like chemical farming

d)

Adopt practices like organic farming

172.

Which food items primarily supply proteins?

a)

Fruits and vegetables

b)

Pulses like gram, peas, lentils, etc.

c)

Cereals like rice and wheat

d)

Dairy products like milk and cheese

173.

Name any two fodder crops.

a)

Wheat and rice

b)

Corn and barley

c)

Berseem and Sudan grass

d)

Potato and tomato

174.

What are photoperiods related to?

a)

Duration of rainfall

b)

Duration of sunlight

c)

Duration of wind

d)

Duration of temperature

175.

What is the duration of kharif season?

a)

From November to April

b)

From June to October

c)

From April to June

d)

From October to November

176.

What is the duration of Rabi season?

a)

From November to April

b)

From June to October

c)

From April to June

d)

From October to November

177.

Name two kharif crops.

a)

Wheat and mustard

b)

Paddy and maize

c)

Rice and barley

d)

Potato and tomato

178.

Name two rabi crops.

a)

Paddy and maize

b)

Wheat and mustard

c)

Rice and barley

d)

Potato and tomato

179.

Name the three stages in which farming practices are divided.

a)

Choice of seeds, nurturing of crop plants, and protection of the growing and harvested crops

b)

Choice of seeds, harvesting of crop plants, and protection of the growing and harvested crops

c)

Choice of seeds, watering of crop plants, and protection of the growing and harvested crops

d)

Choice of seeds, ploughing of crop plants, and protection of the growing and harvested crops

180.

What is the name given to crops obtained by introducing a gene that provides the desired characteristic?

a)

Genetically modified crops

b)

Organic crops

c)

Hybrid crops

d)

Conventional crops

181.

Name any two factors for which crop variety improvement is done.

a)

Higher yield and improved quality

b)

Lower yield and decreased quality

c)

Higher yield and decreased quality

d)

Lower yield and improved quality

182.

How many nutrients are essential for plants?

a)

Four

b)

Eight

c)

Twelve

d)

Sixteen

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